IMHO, Roland is heading in the right direction if they use advanced modeling techniques in their future products.
Their V-Piano sounds awesome ! not a single Piano sample, it uses pure modeling technology to emulate the physical and sonic characteristics of a Piano, the results are A+
If they can offer a sophisticated Analog modeling synth, that is able to accurately model analog circuits, my guess is they will deliver a fantastic sounding analog modeled synth. Their modeling technology could also be expanded into the area of Strings (bowed and plucked), Brass, and Woodwinds.